Yarn package and method of producing the same



June 15, 1937. H. MEADOWS YARN PACKAGE AND METHOD OF .PRODUCING THE SAME2 Sheets-Sheet 1 Filed Jan. 13, 1936 C. /7f NEADO vvs JNVENTOR Arroe EyeC. H. MEADOWS YARN PACKAGE AND METHOD OF PRODUCING THE SAME June, 15,1937.

2 sheetswsheet 2 aaaAA-lrrlllr Filed Jan. 15, 1936 GIMME/wows 1 .BW M/Qr% ATroR/v 73 Patented June 15, 1937 UNITED STATE FATE? QFFEE YARNPACKAGE AND METHOD OF PRODUC- ING THE SAME Charles England, assignorEngland Application January 13, 1936, Serial No. 58,931

in Great Britain October 15,

13 Claims.

This invention is for improvements in and relating to yarn bobbins,cones, spools and the like. In winding yarn packages on to a cone orother centre, it not infrequently occurs that the 5 ends of two lengthsof yarn have to be knotted together. In the case of comparatively softyarn or threads, it is possible to continue winding in the ordinarymanner after a knot has been 7 formed, with the result that the knot iswound into the body of the package. This is not practicable, however, inthe case of hard yarns or threads such as natural silk in the gum orartificial silk (which for knitting are usually wound in frustro-conicalpackages) for reason that when the thread is subsequently being unwound,as for example in machine knitting, it catches beneath the knots and isout or broken.

An object of the present invention is therefore to provide a yarnpackage of the type from which the yarn or thread, particularly hardthread, is adapted to be drawn off endwise, in which knots or otherirregularities in the thread are so disposed as not to catch the threadthat is being withdrawn.

With this object in view this invention, as viewed from one aspect,provides a method of winding packages of yarn, particularly hard yarnsuch as natural silk in the gum or artificial silk, which consists in sowinding the yarn on to a centre (e. g. a cone or tube) that any knotspresent in the yarn are brought on to or over an end face of the centreand lie thereon at a less radius than the minimum radius of the yarnwindings. Hence, during unwinding the yarn may be drawn freely off thepackage without catching the knots. More specifically, there is utilizedin this method a centre having its diameter abruptly stepped downwardsnear one end (the small end in the case of a cone) to provide a flangeor shoulder and any knots present in the yarn are brought on to the saidshoulder.

The invention also includes a yarn package wound on to a centre, e. g. acone or barrel tube,

having an inwardly directed flange at or near the drawing-off and on towhich flange the knots, if any, in the yarn are brought.

In order that the invention may be better understood, reference will nowbe made to the accompanying drawings in which Figure 1 is a perspectiveview of a silk cone according to this invention.

Figure 2 is a perspective view of a cylindrical yarn package accordingto this invention.

Figure 3 is a plan view of a package such as is shown in Figure 1 orFigure 2.

Figure 4 is a perspective view of a conical centre according to thisinvention, while Figure 5 is a section therethrough.

Throughout this description, like reference numerals indicate likeparts.

In the exercise of this invention, a silk or other thread is wound inthe form of a package l0, having an exposed end face H (which in thecase of a frustro-conical package or cone as shown in Figure 1, may be asmall end face so that it is possible to withdraw the yarn endwise),upon the exterior periphery of an elongated central body IZ. This bodyhas an end face [2a which extends inward from the threadreceivingexterior. In the operation of winding the thread upon the said exterior,between the end face H211 and the other end of the centre, when a knotor other irregularity it in the thread is reached, the winding operationis temporarily interrupted and the length containing said irregularityis laid across the end face 120. so that the knot I3 is exposed thereonat a radius less than the minimum radius of the yarn windings at thatend of the package. Therefore, the knot is so disposed that it will notinterfere with the withdrawal of the yarn from that end.

It is preferred to form the inwardly directed end face I211 as ashoulder near one end of the central body. Such a shoulder may be formedeither upon a conical body as is shown in Figures 1, 4 and 5, or upon aparallel body H2 as is shown in Figure 2, according to the type ofpackage.

The central body may be made of compressed paper (preferably having avarnished face) wood, metal, or of any other substance commonly utilizedfor such an article. In the case of a cone, instead of being uniformlytapered down to its small end hi, it is stepped near said end as shownin Figures 4 and 5. By virtue of this step, a narrow inwardly directedflange or ledge lZa is provided from the centre of which the end portionof the cone projects. This end portion may be of open frustro-conicalformation or it may terminate in a substantially hemispherical toppierced with a central hole.

Such a cone centre may be either formed in one piece or the ledge l2amay be produced by attaching a separate top piece. In the example shownin Figure 5, the cone consists of a frustroconical body indicated by thenumber I2b having inserted into it a further conical body H20 whichprojects from. the small end thereof. In this manner, a ledge |2a equalto the thickness of the peripheral walls of the body l2b is produced.

I claim:-

1. A method of winding packages of yarn, par-- ticularly hard yarn suchas natural silk in the gum or artificial silk, which consists in windingthe yarn onto a centre having an end face and bringing any knots presentin the yarn onto or over said end face so that they lie thereon at aless radius than the minimum radius of the yarn windings.

2. In producing wound packages of yarns of the kind adapted to have theyarn drawn off them endwise of the package, the step of locating suchknots as are present in the yarn at an end face of the package and at aradius less than the least radius of the yarn windings at that end.

3. In winding onto a centre a yarn having a knot in it, to produce awound package from which the said yarn is to be drawn off endwise, thestep of bringing said knot to the face of the drawing-off end of thepackage and positioning it at a radius less than the minimum radius ofthe package coils at that end.

4. In producing a wound package of silk, from a thread orvyarn having aknot or knop therein, by winding onto a centre, the steps ofinterrupting the winding at the knot or knop and passing the length ofthread containing it across the end face of the package so that the saidknot or knop is exposed at said face at a radius less than the packagewindings.

5. A method of producing a wound package of yarn which comprisesemploying a centre having its diameter abruptly stepped downwards orreduced near one end thereby to provide a flange or shoulder, windingthe yarn onto said centre between the flange. and the other end, butpassing any knot or knots present in the yarn across the face of saidflange.

6. A method of producing a wound package from yarn having at least onecross-sectional irregularity therein, which comprises taking acentre-body of elongated form, winding the yarn thereon in a packagehaving an exposed end face, and during the winding laying that portionof the yarn, in which the irregularity occurs, transversely of the endface with the said irregularity at a radius less than the minimum radiusof the package windings at that face.

7. A method of producing a wound package from yarn, an intermediatelength of which includes an irregularity, which package includes acentral elongated body having an end face directed inwards from ayarn-receiving exterior, which method comprises winding the yarn ontosaid exterior in the form of a package having an end face, adjacent saidinwardly directed end face, exposed, and disposing the said irregularityon the said inwardly directed end face.

8. A wound package of yarn comprising an elongated central body having ayarn-receiving exterior and at one end an end face directed inwards fromsaid exterior, yarn wound around said exterior in the form of a packagehaving an end face, adjacent said inwardly directed face, exposed, and aportion of the yarn containing an irregularity extending across the saidinwardly directed end face between successive coils of the winding.

9. A wound package of yarn comprising a centre with the yarn woundthereon, and having in the yarn a knot which is exposed at an end faceat a radius less than the least radius of the windings at that end.

10. A wound yarn-package of the kind adapted to have the yarn drawn oifit endwise, which yarn contains a knot, comprising a centre having anend face adjacent the drawing-off end of the package on which centre theyarn is wound between said end-face and the. other end of the centre,with the knot upon said end face.

11. A wound package of yarn having one end face of the yarn windingsexposed, comprising a centre surrounded by the wound-on yarn, in whichyarn there is a knot that is exposed at said end face at a radius lessthan the minimum radius of the package windings thereat.

12. A wound package of yarn having the end face of the yarn windingsexposed, comprising a centre surrounded by the wound-on yarn whichcentre is abruptly stepped down in diameter near one end thereby forminga shoulder, which shoulder is exposed at the said end face and having acrosssectional irregularity occurring in the yarn between successivewindings thereof laid across and exposed on the face of said shoulder.

13. A frustro-conical package of wound yarn having the small end face ofthe yarn windings exposed, comprising a tapered centre having aninwardly directed peripheral step near one end, which centre issurrounded with theyarn windings between said step and the other end,and

having a portion of the yarn in which an irregularity is presentextending across the face of said step. 7

CHARLES HENRY MEADOWS.

